Anyloop plugin for LabJack devices

Supports the LabJack U3 only for now, but the code tries to be as generic as possible.

When cloning this repository, make sure to --recurse-submodules so you grab the exodriver dependency.

aylp_ljtdac.so

Types and units: [T_VECTOR, U_V] -> [T_UNCHANGED, U_UNCHANGED].

This device interprets the state vector as a pair of voltages, writing them to an LJTick-DAC connected to a LabJack. The first voltage is written to DACA, and the second to DACB. The LJTick-DAC is assumed to be connected to pins FIO5 and FIO4 on the LabJack.

Parameters

• host (string) (required)
  • The model name of the LabJack. Must be "U3" for now.
• square_hz (integer) (optional)
  • Frequency in Hz to optionally clock FIO6 with a square wave at.
• fast (boolean) (optional)
  • Whether or not to skip the LJUSB_Read call after writing each voltage, roughly cutting latency in half. Might break things! Defaults to false.

libaylp dependency

Symlink or copy the libaylp directory from anyloop to libaylp. For example:

ln -s $HOME/git/anyloop/libaylp libaylp

exodriver dependency

Handled in a git submodule.

Building

Use meson:

meson setup build
meson compile -C build